Shielding Vertical Lines for Signal Coupling Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The coupling effect between adjacent signal lines in electronic devices leads to unsatisfactory signal transmission quality, complicating circuit layouts and affecting the performance of electronic products.
Innovation Solution
The electronic device incorporates a substrate with transversal signal lines, vertical signal lines, and shielding vertical lines, where the shielding lines are strategically placed between the signal lines to reduce interference, and can be transparent to maintain display aperture ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If shielding vertical lines are added between signal lines to reduce coupling effect, then signal transmission quality is improved, but device structure complexity increases
Solution Approach 1:
A shielding vertical line is introduced as an intermediary element between adjacent signal lines (first vertical signal line and second vertical signal line). This shielding line acts as a mediator to block or reduce the coupling effect between the signal lines, thereby improving signal transmission quality without requiring fundamental changes to the existing circuit architecture.
Solution Approach 2:
The shielding vertical line is segmented into multiple parts: a first shielding segment and a second shielding segment, which are positioned at different locations between the signal lines. This segmentation allows the shielding function to be distributed across multiple zones, effectively reducing coupling effects at different positions while maintaining manageable structural complexity.
2Area of stationary object
If transparent shielding lines are used to maintain display aperture ratio, then display area is preserved, but shielding effectiveness may be reduced
Solution Approach 1:
The shielding vertical line is designed with spatially varying properties: in regions where it overlaps with pixel electrodes, it is made transparent to preserve display aperture ratio; in other regions, it can be opaque or have different transparency levels to provide effective shielding. This local differentiation of transparency allows simultaneous optimization of both display area and shielding effectiveness.
Solution Approach 2:
The shielding vertical line is constructed using composite material structures, such as alternating transparent and opaque segments, or combinations of different transparent materials with varying transparency levels. This composite approach enables the shielding line to provide electromagnetic shielding while maintaining appropriate transparency in display regions, thus balancing both requirements.
Data Source
AI summary
An electronic device including a substrate, transversal signal lines, a first vertical signal line, a second vertical signal line, and a first shielding vertical line is provided. The transversal signal lines, the first vertical signal line, the second vertical signal line, and the first shielding vertical line are disposed on the substrate. The first vertical signal line and the second vertical signal line are intersected with the transversal signal lines. The second vertical signal line is connected to one of the transversal signal lines. An orthogonal projection of the first shielding vertical line on the substrate is between an orthogonal projection of the first vertical signal line on the substrate and an orthogonal projection of the second vertical signal line on the substrate.